EP1076458B1 - Twin converter - Google Patents
Twin converter Download PDFInfo
- Publication number
- EP1076458B1 EP1076458B1 EP00115642A EP00115642A EP1076458B1 EP 1076458 B1 EP1076458 B1 EP 1076458B1 EP 00115642 A EP00115642 A EP 00115642A EP 00115642 A EP00115642 A EP 00115642A EP 1076458 B1 EP1076458 B1 EP 1076458B1
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- EP
- European Patent Office
- Prior art keywords
- broadband
- frequency band
- twin
- converter
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
- H04H20/63—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast to plural spots in a confined site, e.g. MATV [Master Antenna Television]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/4446—IF amplifier circuits specially adapted for B&W TV
Definitions
- the invention relates to a twin converter according to the preamble of claim 1.
- Twin converters do not allow just one, but two connected participants independently, for example the broadband broadcast over ASTRA satellites Signal program offer to receive, because of There emitted frequency range from 10.7 to 12.75 GHz be received independently by each of the two subscribers can.
- the switchover takes place known to be in the form of a voltage level switching signal from, for example, 13 or 14 volts to 18 Volt and by feeding a sound signal of example 0kHz or 22kHz.
- Such a receiving system and use of a twin converter can be but then very limited to develop a community antenna system, in which For example, four or more than four connected Participant with the interposition of one or more cascaded switching matrix arrangement independently Programs can receive.
- a community antenna system in which For example, four or more than four connected Participant with the interposition of one or more cascaded switching matrix arrangement independently Programs can receive.
- only two range levels could be received, if, for example, at an output of the converter the vertically polarized programs in the lower frequency band and at the other exit the horizontally polarized Programs also of the lower frequency band queue.
- a twin converter is already proposed been in the normal twin operation only the reception of allows two reception area levels, namely, for example the independent reception of the vertical or horizontal polarized signals in the lower frequency band range. This was the analog programs, but not in the upper frequency band broadcast digital programs receivable.
- Such a converter could become a broadband feed system expanded for a community antenna system be, for example, by connecting a Satellite divider with a converter.
- a Satellite divider By the way formed four outputs are in a fixed assignment the vertical lower, the horizontal lower, the vertical upper and horizontal upper frequency band spectrum to the reception, so that by Nachscrien one or a plurality of cascaded switching matrix circuits four or more than four participants independently the whole Frequency spectrum could receive.
- twin converter provided that it is connected to each of two Participants allow all four area levels to receive. Nevertheless, the twin converter according to the invention also to a broadband feed system for a Community antenna system can be extended without that a new converter circuitry is needed.
- this is realized by respecting the two in a conventional twin converter receivable lower frequency bands at each output at least a polarization encompassing the lower frequency band not narrowband but broadband pending.
- a narrowband lower vertical frequency band at one exit for example, the entire Frequency spectrum in the IF level comprehensive broadband Signal according to the received vertical Polarizations on.
- the second output is then instead of the narrow band lower frequency band with respect to the horizontal polarization a corresponding broadband signal with regard to the received horizontal Polarizations, which is the lower and upper frequency band includes.
- the upper and lower frequency band otherwise in the IF frequency level includes the broadband implementation on the one or other output once for the vertical and the horizontal Receive signal broadband implementation of, for example 950 MHz to 3000 MHz.
- twin mode the upper frequency spectrum of this can Broadband signal can not be received, but without Meaning is, as by an appropriate switching this upper frequency band range by switching to a other reception area level in the usual range of For example, 1100 MHz to 2100 MHz is implemented and about it is receivable.
- the broadband design of the twin converter allows but then a problem-free extension to a broadband Community antenna system, in which then both exits be preset so that at an output the broadband vertical and at the other output the broadband horizontal signal is applied.
- the broadband needed for community antenna operation Output signal once with respect to the vertical and once with respect to the horizontal received polarizations already automatically created, if only on one Output provided a corresponding supply voltage will, so if already at the other Output 0 volts applied.
- FIG 1 is a schematic representation of a satellite antenna with a feed system 3 and a downstream Twin converter 5 shown at its two derivatives 7 and 9 in the twin mode each have a participant 11a and 11b are connected.
- the vertical and horizontal polarizations of one Satellites and broadcast by a satellite group Frequency spectrum from 10.7 to 12.75 GHz, for example, the frequency band of 10.7 to 11.7 GHz also as the lower frequency band and the subsequent one Range from 11.7 to 12.75 GHz also as the upper frequency band can be designated.
- Switching between the four frequency band ranges is performed by each of the two participants 11a, 11b one from its receiver via the leads 7 or 9 the outputs 7a and 9a of the twin converter supplied Supply voltage, for example in the amount of 13 volts or 18 Volt.
- the low voltage level may be, for example, as Switching voltage for receiving the vertical polarization and the higher voltage level, for example, as a switching signal for receiving the horizontal polarizations serve.
- a switchover from the lower to the upper frequency range can, for example, by switching from 0 kHz be made to a switching tone of 22 kHz.
- twin converter according to the invention now has the following reception ranges as a function of the following switching signals, which are reproduced in the following table:
- the four different frequency band ranges can be selected, wherein at the first exit 7a, a lower frequency band, in the embodiment shown the lower horizontal frequency band is not narrowband just to receive the frequencies from 950 to, for example 1950 MHz, but broadband to receive the entire Frequency spectrum in the IF level from 950 to 3000 MHz is designed.
- one receiving level namely the complementary one Reception level to receive the vertical lower Polarization at the other output also not narrow band, but designed broadband and includes that in the IF level converted total received frequency spectrum from 950 to 3000 MHz.
- such a twin receiver under Downstream of a satellite diverter with a Converter and an at least first switching matrix according to Figure 2 expands, so it is only necessary that on an output of the twin converter, the broadband signal to receive the vertical and at the other exit the broadband signal for receiving the horizontal polarizations is firmly attached.
- SAT range switch with Converter 15 is now at the four formed there Outputs each defines a signal for receiving the lower or upper vertical or horizontal Reception area, so that by downstream a switching matrix 19 now each of the connected there Subscribers independently of each other all four satellite reception areas can receive.
Abstract
Description
Die Erfindung betrifft einen Twin-Konverter nach dem Oberbegriff
des Anspruchs 1.The invention relates to a twin converter according to the preamble
of
Twin-Konverter ermöglichen nicht nur einem, sondern zwei angeschlossenen Teilnehmern unabhängig voneinander beispielsweise das über ASTRA-Satelliten ausgestrahlte breitbandige Signal-Programmangebot zu empfangen, da der von dort ausgestrahlte Frequenzbereich von 10,7 bis 12,75 GHz von jedem der beiden Teilnehmer unabhängig empfangen werden kann. Dazu sind derartige Twin-Receiver mit zwei Lokaloszillatoren bzw. zwei Lokaloszillator-Frequenzen betreibbar, die es ermöglichen, sowohl das untere vom Satelliten ausgestrahlte Frequenzband als auch das obere ausgestrahlte Frequenzband in einen sich überlappenden für die angeschlossenen Receiver empfangbaren Zwischenfrequenz-Bereich (ZF-Bereich) umzusetzen. Twin converters do not allow just one, but two connected participants independently, for example the broadband broadcast over ASTRA satellites Signal program offer to receive, because of There emitted frequency range from 10.7 to 12.75 GHz be received independently by each of the two subscribers can. These are twin receivers with two Local oscillators or two local oscillator frequencies operable, which allow both the lower of Satellite broadcast frequency band as well as the upper emitted frequency band in an overlapping for the connected receiver receivable intermediate frequency range (ZF area).
Von daher kann jeder der beiden an einem derartigen Twin-Receiver angeschlossenen Teilnehmer unabhängig wählen, ob er über vertikal oder horizontal polarisierte Signale ausgestrahlte Programme in einem unteren oder oberen Frequenzbandbereich empfangen will. Die Umschaltung erfolgt dabei bekanntermaßen in Form eines Spannungspegels-Umschaltsignals von beispielsweise 13 oder 14 Volt auf 18 Volt und durch Einspeisung eines Tonsignals von beispielsweise 0 kHz oder 22 kHz.Therefore, each of the two on such a twin receiver Independent participants can choose whether he uses vertically or horizontally polarized signals broadcast programs in a lower or upper frequency band range wants to receive. The switchover takes place known to be in the form of a voltage level switching signal from, for example, 13 or 14 volts to 18 Volt and by feeding a sound signal of example 0kHz or 22kHz.
Eine derartige Empfangsanlage und Einsatz eines Twin-Konverters lässt sich dann allerdings nur sehr eingeschränkt zu einer Gemeinschaftsantennenanlage ausbauen, bei der beispielsweise vier oder mehr als vier angeschlossene Teilnehmer mit der Zwischenschaltung von einer oder mehreren kaskadierten Schaltmatrixanordnung unabhängig voneinander Programme empfangen können. In einem derartigen Fall könnten nur zwei Bereichsebenen empfangen werden, wenn nämlich beispielsweise an einem Ausgang des Konverters die vertikal polarisierten Programme im unteren Frequenzband und am anderen Ausgang die horizontal polarisierten Programme ebenfalls des unteren Frequenzbandes anstehen.Such a receiving system and use of a twin converter can be but then very limited to develop a community antenna system, in which For example, four or more than four connected Participant with the interposition of one or more cascaded switching matrix arrangement independently Programs can receive. In such a Case, only two range levels could be received, if, for example, at an output of the converter the vertically polarized programs in the lower frequency band and at the other exit the horizontally polarized Programs also of the lower frequency band queue.
Von daher ist bereits ein Twin-Konverter vorgeschlagen worden, der im normalen Twin-Betrieb nur den Empfang von zwei Empfangsbereichsebenen erlaubt, nämlich beispielsweise den unabhängigen Empfang der vertikal oder horizontal polarisierten Signale im unteren Frequenzbandbereich. Damit waren die analogen Programme, nicht aber die im oberen Frequenzband ausgestrahlten digitalen Programme empfangbar.Therefore, a twin converter is already proposed been in the normal twin operation only the reception of allows two reception area levels, namely, for example the independent reception of the vertical or horizontal polarized signals in the lower frequency band range. This was the analog programs, but not in the upper frequency band broadcast digital programs receivable.
Ein derartiger Konverter konnte jedoch zu einem Breitbandspeisesystem für eine Gemeinschaftsantennenanlage ausgebaut werden, beispielsweise durch Nachschaltung einer Satelliten-Bereichsweiche mit einem Umsetzer. An den dadurch gebildeten vier Ausgängen stehen in fester Zuordnung das vertikale untere, das horizontale untere, das vertikale obere und das horizontale obere Frequenzband-Spektrum zum Empfang an, so dass durch Nachschaltung einer oder mehrerer kaskadierter Umschalt-Matrixschaltungen vier oder mehr als vier Teilnehmer unabhängig voneinander das gesamte Frequenzspektrum empfangen konnten.However, such a converter could become a broadband feed system expanded for a community antenna system be, for example, by connecting a Satellite divider with a converter. By the way formed four outputs are in a fixed assignment the vertical lower, the horizontal lower, the vertical upper and horizontal upper frequency band spectrum to the reception, so that by Nachschaltung one or a plurality of cascaded switching matrix circuits four or more than four participants independently the whole Frequency spectrum could receive.
Die zuletzt genannte Lösung weist gegenüber der eingangs genannten Lösung den Vorteil auf, dass ein derartiger Twin-Konverter auch beim Ausbau zu einer Gemeinschaftsantennenanlage noch einsetzbar ist. Dies ist allerdings mit dem Nachteil verbunden, dass im Twin-Betrieb nur ein eingeschränktes Frequenzband-Spektrum, nämlich beispielsweise nur das analoge Frequenzangebot im unteren Frequenzbandbereich empfangbar ist.The latter solution has opposite to the beginning mentioned solution has the advantage that such a Twin converter also when upgrading to a community antenna system is still usable. This is, however associated with the disadvantage that in the twin mode only one restricted frequency band spectrum, namely, for example only the analogue frequency offer in the lower frequency band range is receivable.
Aufgabe der vorliegenden Erfindung ist es einen demgegenüber verbesserten Konverter zu schaffen.Object of the present invention, it is a contrast to create improved converter.
Die Aufgabe wird erfindungsgemäß entsprechend den im Anspruch
1 angegebenen Merkmalen gelöst. Vorteilhafte Ausgestaltungen
der Erfindung sind in den Unteransprüchen angegeben. The object is according to the invention in the
Mit der erfindungsgemäßen Lösung wird ein Twin-Konverter zur Verfügung gestellt, der es jedem von zwei angeschlossenen Teilnehmern erlaubt alle vier Bereichsebenen zu empfangen. Gleichwohl kann der erfindungsgemäße Twin-Konverter auch zu einem breitbandigen Speisesystem für eine Gemeinschaftsantennenanlage erweitert werden, ohne dass eine neue Konverter-Schaltungsanordnung benötigt wird.With the solution according to the invention is a twin converter provided that it is connected to each of two Participants allow all four area levels to receive. Nevertheless, the twin converter according to the invention also to a broadband feed system for a Community antenna system can be extended without that a new converter circuitry is needed.
Erfindungsgemäß wird dies dadurch realisiert, dass bezüglich der beiden bei einem herkömmlichen Twin-Konverter empfangbaren unteren Frequenzbänder an jedem Ausgang zumindest eine das untere Frequenzband umfassende Polarisation nicht schmalbandig sondern breitbandig ansteht. Anstelle eines schmalbandigen unteren vertikalen Frequenzbandes am einen Ausgang steht beispielsweise ein das gesamte Frequenzspektrum in der ZF-Ebene umfassendes breitbandiges Signal entsprechend der empfangenen vertikalen Polarisationen an. An dem jeweils zweiten Ausgang steht dann anstelle des schmalbandigen unteren Frequenzbandes bezüglich der horizontalen Polarisation ein entsprechend breitbandiges Signal im Hinblick auf die empfangenen horizontalen Polarisationen an, das das untere und obere Frequenzband umfasst.According to the invention, this is realized by respecting the two in a conventional twin converter receivable lower frequency bands at each output at least a polarization encompassing the lower frequency band not narrowband but broadband pending. Instead of a narrowband lower vertical frequency band at one exit, for example, the entire Frequency spectrum in the IF level comprehensive broadband Signal according to the received vertical Polarizations on. At the second output is then instead of the narrow band lower frequency band with respect to the horizontal polarization a corresponding broadband signal with regard to the received horizontal Polarizations, which is the lower and upper frequency band includes.
Während also das obere und untere Frequenzband ansonsten in der ZF-Frequenzebene beispielsweise auf 950 MHz bis 1950 MHz bzw. auf 1100 MHz bis 2100 MHz umgesetzt wird, beinhaltet die breitbandige Umsetzung an dem einen oder anderen Ausgang einmal für das vertikale und das horizontale Empfangssignal eine breitbandige Umsetzung von beispielsweise 950 MHz bis 3000 MHz.So while the upper and lower frequency band otherwise in the IF frequency level, for example 950 MHz to 1950 MHz or 1100 MHz to 2100 MHz, includes the broadband implementation on the one or other output once for the vertical and the horizontal Receive signal broadband implementation of, for example 950 MHz to 3000 MHz.
Im Twin-Betrieb kann das obere Frequenz-Spektrum dieses Breitbandsignals nicht empfangen werden, was jedoch ohne Bedeutung ist, da durch eine entsprechende Umschaltung dieser obere Frequenzbandbereich durch Umschaltung in eine andere Empfangsbereichsebene in den üblichen Bereich von beispielsweise 1100 MHz bis 2100 MHz umgesetzt wird und darüber empfangbar ist.In twin mode, the upper frequency spectrum of this can Broadband signal can not be received, but without Meaning is, as by an appropriate switching this upper frequency band range by switching to a other reception area level in the usual range of For example, 1100 MHz to 2100 MHz is implemented and about it is receivable.
Die breitbandige Auslegung des Twin-Konverters erlaubt dann aber eine problemlose Erweiterung zu einer breitbandigen Gemeinschaftsantennenanlage, in der dann beide Ausgänge so voreingestellt werden, dass an einem Ausgang das breitbandige vertikale und am anderen Ausgang das breitbandige horizontale Signal anliegt.The broadband design of the twin converter allows but then a problem-free extension to a broadband Community antenna system, in which then both exits be preset so that at an output the broadband vertical and at the other output the broadband horizontal signal is applied.
In einer bevorzugten Ausführungsform der Erfindung wird das für den Gemeinschaftsantennenbetrieb benötigte breitbandige Ausgangssignal einmal bezüglich der vertikalen und einmal bezüglich der horizontalen empfangenen Polarisationen bereits dann automatisch angelegt, wenn nur an einem Ausgang eine entsprechende Versorgungsspannung bereitgestellt wird, also bereits dann, wenn an dem anderen Ausgang 0 Volt anliegen.In a preferred embodiment of the invention the broadband needed for community antenna operation Output signal once with respect to the vertical and once with respect to the horizontal received polarizations already automatically created, if only on one Output provided a corresponding supply voltage will, so if already at the other Output 0 volts applied.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels erläutert. Dabei zeigen im einzelnen:
- Figur 1 :
- eine schematische Satellitenempfangsanlage für den Twin-Betrieb; und
- Figur 2
- eine entsprechend erweiterte Anlage für eine Gemeinschaftsantennenanlage.
- FIG. 1:
- a schematic satellite receiving system for the twin operation; and
- FIG. 2
- a correspondingly extended system for a community antenna system.
In Figur 1 ist in schematischer Darstellung eine Satellitenantenne
mit einem Speisesystem 3 und einem nachgeschalteten
Twin-Konverter 5 gezeigt, an dessen beiden Ableitungen
7 und 9 im Twin-Betrieb jeweils ein Teilnehmer 11a und
11b angeschlossen sind.In Figure 1 is a schematic representation of a satellite antenna
with a
Mit einer derartigen Anlage können beispielsweise die vertikalen und horizontalen Polarisationen des von einem Satelliten und von einer Satellitengruppe ausgestrahlten Frequenzspektrums von 10,7 bis 12,75 GHz empfangen werden, wobei das Frequenzband von 10,7 bis 11,7 GHz beispielsweise auch als unteres Frequenzband und der anschließende Bereich von 11,7 bis 12,75 GHz auch als oberes Frequenzband bezeichnet werden kann.With such a system, for example, the vertical and horizontal polarizations of one Satellites and broadcast by a satellite group Frequency spectrum from 10.7 to 12.75 GHz, for example, the frequency band of 10.7 to 11.7 GHz also as the lower frequency band and the subsequent one Range from 11.7 to 12.75 GHz also as the upper frequency band can be designated.
Die Umschaltung zwischen den vier Frequenzbandbereichen
erfolgt von jedem der beiden Teilnehmer 11a, 11b durch
eine von seinem Empfänger über die Ableitungen 7 oder 9
der Ausgänge 7a und 9a des Twin-Konverters zugeführte
Speisespannung, beispielsweise in Höhe von 13 Volt bzw. 18
Volt. Der niedrige Spannungspegel kann beispielsweise als
Umschaltspannung zum Empfang der vertikalen Polarisation
und der höhere Spannungspegel beispielsweise als Umschaltsignal
zum Empfang der horizontalen Polarisationen
dienen. Eine Umschaltung vom unteren zum oberen Frequenzbanbereich
kann beispielsweise durch Umschaltung von 0 kHz
auf einen Schaltton von 22 kHz vorgenommen werden.Switching between the four frequency band ranges
is performed by each of the two
Der erfindungsgemäße Twin-Konverter weist aber nunmehr
folgende Empfangsbereiche in Abhängigkeit folgender
Schaltsignale auf, die in der nachstehenden Tabelle wiedergegeben
sind:
Daraus ist also ersichtlich, dass bei herkömmlichen Twin-Konvertern
durch Umschaltung zwischen 13 V auf 18 V und 0
kHz auf 22 kHz die vier unterschiedlichen Frequenzbandbereiche
ausgewählt werden können, wobei am ersten Ausgang
7a ein unteres Frequenzband, im gezeigten Ausführungsbeispiel
das untere horizontale Frequenzband nicht schmalbandig
nur zum Empfang der Frequenzen von 950 bis beispielsweise
1950 MHz, sondern breitbandig zum Empfang des gesamten
Frequenzspektrums in der ZF-Ebene von 950 bis 3000
MHz ausgelegt ist.It can therefore be seen that in conventional twin converters
by switching between 13 V to 18 V and 0
kHz to 22 kHz the four different frequency band ranges
can be selected, wherein at the
Entsprechend ist eine Empfangsebene, nämlich die komplementäre Empfangsebene zum Empfang der vertikalen unteren Polarisation am anderen Ausgang ebenfalls nicht schmalbandig, sondern breitbandig ausgelegt und umfasst das in die ZF-Ebene umgesetzte gesamte empfangene Frequenzspektrum von 950 bis 3000 MHz.Accordingly, one receiving level, namely the complementary one Reception level to receive the vertical lower Polarization at the other output also not narrow band, but designed broadband and includes that in the IF level converted total received frequency spectrum from 950 to 3000 MHz.
Im normalen Betrieb, wenn beispielsweise der am Ausgang 7
angeschlossene Teilnehmer 11a als Steuerungssignal 18 V /
0 kHz eingegeben hat, also das breitbandige Signal von 950
bis 3000 MHz am Ausgang 7 des Twin-Receivers ansteht, entspricht
dies dem Empfang des unteren horizontalen Frequenzbandes.
Der obere Frequenzbandbereich in der ZF-Ebene
ist für ihn in dieser Einstellung nicht empfangbar. Will
er den oberen Frequenzbandbereich der horizontalen Polarisation
empfangen, so muss er auf 18 V / 22 kHz umschalten,
da dann das obere Frequenzband in der ZF-Frequenzebene
beispielsweise bei 1100 MHz bis 2150 MHz ansteht, also vom
Teilnehmer empfangen werden kann.In normal operation, for example, if the
Wird gemäß Figur 2 ein derartiger Twin-Receiver unter Nachschaltung einer Satelliten-Bereichsweiche mit einem Umsetzer und einer zumindest ersten Schaltmatrix gemäß Figur 2 erweitert, so ist es nur erforderlich, dass an einem Ausgang des Twin-Konverters das breitbandige Signal zum Empfang der vertikalen und am anderen Ausgang das breitbandige Signal zum Empfang der horizontalen Polarisationen fest ansteht. Dies kann durch eine der aus der vorstehenden Tabelle ersichtlichen Schalteinstellung vorgenommen werden, wobei es nur erforderlich ist, dass an einem Ausgang eine entsprechende Speisespannung zum Betrieb des Twin-Konverters eingespeist wird und im anderen Ausgang 0 Volt anliegen.If, according to Figure 2, such a twin receiver under Downstream of a satellite diverter with a Converter and an at least first switching matrix according to Figure 2 expands, so it is only necessary that on an output of the twin converter, the broadband signal to receive the vertical and at the other exit the broadband signal for receiving the horizontal polarizations is firmly attached. This can be done by one of the above table apparent switch setting made it is only necessary that an output a corresponding supply voltage for operation of the twin converter is fed and in the other Output 0 volts applied.
Durch die in Figur 2 wiedergegebene SAT-Bereichsweiche mit
Umsetzer 15 liegt nunmehr an den dort gebildeten vier
Ausgängen fest definiert jeweils ein Signal zum Empfangen
des unteren bzw. oberen vertikalen oder horizontalen
Empfangsbereiches an, so dass durch Nachschaltung
einer Umschaltmatrix 19 nunmehr jeder der dort angeschlossenen
Teilnehmer unabhängig voneinander alle vier Satellitenempfangsbereiche
empfangen kann.By reproduced in Figure 2 SAT range switch with
Claims (2)
- Twin converter having the following features:two subscribers (11a, 11b) can receive at least four reception areas independently of one another at the two outputs (7a, 9a), specifically on the one hand the vertically polarized signals and on the other hand the horizontally polarized signals, and on one hand in a lower frequency band range and on the other hand in an upper frequency band range, characterized by the following further features:the twin converter can be upgraded to a broadband community antenna system, via which both the lower and the upper on the one hand vertically polarized and on the other hand horizontally polarized frequency spectrum can be received independently of one another for two or more subscribers (11) who can be connected,the twin converter (5) is designed such that, in the twin mode, not only the vertical lower broadband frequency band spectrum but the entire vertical broadband frequency spectrum is produced at one of its outputs (7a) with respect to one of the four receivable area levels, and not only the horizontal lower broadband frequency band spectrum but also the entire horizontal broadband frequency band spectrum is produced at the other output (9a) with respect to one of the four receivable area levels, and,in the broadband community antenna system mode, the twin converter (5) can be set such that the broadband frequency band spectrum is produced at one of its outputs (7a) for reception of the vertical polarization, and the broadband frequency band spectrum for reception of the horizontal polarization is produced at the other output (9a).
- Converter according to Claim 1, characterized in that, in the broadband community antenna system mode, it is sufficient to supply power to the twin converter via only one output (7a or 9a), and the broadband vertical or broadband horizontal output signal, respectively, is produced at the relevant output (7a, 9a) even when a switching voltage 0 volts (9a, 7a) is produced at the respective other output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK00115642T DK1076458T3 (en) | 1999-08-12 | 2000-07-20 | Twin converter |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29914050U DE29914050U1 (en) | 1999-08-12 | 1999-08-12 | Twin converter |
| DE29914050U | 1999-08-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1076458A2 EP1076458A2 (en) | 2001-02-14 |
| EP1076458A3 EP1076458A3 (en) | 2001-09-12 |
| EP1076458B1 true EP1076458B1 (en) | 2005-04-06 |
Family
ID=8077378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00115642A Expired - Lifetime EP1076458B1 (en) | 1999-08-12 | 2000-07-20 | Twin converter |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1076458B1 (en) |
| AT (1) | ATE292875T1 (en) |
| DE (2) | DE29914050U1 (en) |
| DK (1) | DK1076458T3 (en) |
| ES (1) | ES2238226T3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20021703U1 (en) * | 2000-12-22 | 2001-03-22 | Kathrein Werke Kg | Twin converter arrangement |
| DE10219847A1 (en) * | 2002-05-03 | 2003-11-27 | Kathrein Werke Kg | Method and device for generating at least one transponder in the satellite intermediate frequency level |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19543717A1 (en) * | 1995-06-19 | 1997-01-02 | Anna Detterbeck | High frequency signal processing and transmitting method esp. radio and television signals transmitted via satellite |
| DE29716786U1 (en) * | 1997-09-18 | 1997-11-27 | Yen Kerl | Satellite frequency demultiplexer with signal division at the wave input |
-
1999
- 1999-08-12 DE DE29914050U patent/DE29914050U1/en not_active Expired - Lifetime
-
2000
- 2000-07-20 EP EP00115642A patent/EP1076458B1/en not_active Expired - Lifetime
- 2000-07-20 DK DK00115642T patent/DK1076458T3/en active
- 2000-07-20 ES ES00115642T patent/ES2238226T3/en not_active Expired - Lifetime
- 2000-07-20 DE DE50009966T patent/DE50009966D1/en not_active Expired - Lifetime
- 2000-07-20 AT AT00115642T patent/ATE292875T1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE50009966D1 (en) | 2005-05-12 |
| DK1076458T3 (en) | 2005-06-27 |
| ES2238226T3 (en) | 2005-09-01 |
| ATE292875T1 (en) | 2005-04-15 |
| EP1076458A3 (en) | 2001-09-12 |
| DE29914050U1 (en) | 1999-11-11 |
| EP1076458A2 (en) | 2001-02-14 |
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